What should you do if you are operating a motor that is being overtaken?

Depends if your door is open or closed if closed locks the car doors and turn on the engine and proceed to speed away but do not speed away always use this as a last resort lock the doors roll up the glass and proceed to call 911 and if the suspect begins to break windows than proceed to pull out slowly and once free drive off and meet 911 in their head quarters and inform them about the situation

if you are being over taken while driving call 911 and drop the phone that way he cant reach it and yell at it later if the suspect keeps insisting pull over because you could crash injuring people if the suspect mugs you, you will be fine because you could easily recognize him never fight him because he might have a weapon on him if he doesn't and you do claim self defense.

Mitochondria produce atp, a high energy compound. atp is used for all sorts of enzyme-mediated reactions, such as making proteins/nucleotides/etc, certain compounds cross the cell membrane, muscles move, etc.  without this source of energy, a cell will die. it will not be able to repair itself, defend against pathogens, etc.